Estimator arrived on time for the appointment. Measurements took about 5 minutes. We were a bit limited in our options for the replacement door because of our garage opening height. Choose a and quot;paneland quot; style steel door and standard/contractor grade opener from Chamberlain. Service was scheduled within 10 days of getting the estimate. Installer arrived on time, removed old door, track, and opener. Installed new track, opener and support brackets, door, keypad, and inside opener. The job took about 4 hours. Installer was professional and did an excellent job. We're still very satisfied 6 months (and one awful winter) later.